JPS5965237A - Damping force testing apparatus for shock absorber - Google Patents

Damping force testing apparatus for shock absorber

Info

Publication number
JPS5965237A
JPS5965237A JP17488382A JP17488382A JPS5965237A JP S5965237 A JPS5965237 A JP S5965237A JP 17488382 A JP17488382 A JP 17488382A JP 17488382 A JP17488382 A JP 17488382A JP S5965237 A JPS5965237 A JP S5965237A
Authority
JP
Japan
Prior art keywords
shock absorber
displacement
load
damping force
detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP17488382A
Other languages
Japanese (ja)
Other versions
JPH0221738B2 (en
Inventor
Hideyuki Matsubara
秀之 松原
Toshio Hashimoto
橋本 利夫
Takaaki Ikeda
池田 高明
Kenji Matsui
賢二 松井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP17488382A priority Critical patent/JPS5965237A/en
Publication of JPS5965237A publication Critical patent/JPS5965237A/en
Publication of JPH0221738B2 publication Critical patent/JPH0221738B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00Testing of vehicles
    • G01M17/007Wheeled or endless-tracked vehicles
    • G01M17/04Suspension or damping

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

PURPOSE:To make the apparatus compact and to facilitate the incorporation into an assembly line, by supporting a displacement detector and a load detector as well as a displacement application and load generating means as a unitary body, so that they can be lifted, on a lifting means, which is lifted and lowered in the range including the specified heights for a shock absorber holding position and a damping force testing position. CONSTITUTION:A shock absorber 21 is provided at an upright attitude. Its lower end is fixed, and its upper end, e.g. the tip of a piston 21A is held. Relative displacement with a constant stroke and a test load are applied to the part between the piston 21A and a shell 21B by a displacement application and load generating means 22. Said displacement application and load generating means 22 is supported by a lifting means 23, which is provided on a base body frame 24 so that the means 22 can be lifted and lowered. A load cell 39 as a load detector and a rotary encoder 40 as a displacement detector are attached to a crank mechanism 29, which is a main body, as a unitary body. In this compact constitution, incorporation to an assembly line and the like is easy and the working can be readily performed.

Description

【発明の詳細な説明】 本発明はショックアブソーバの減衰力テスト装置、特に
構成をコンパクトにして組立工8@に容易に組込めるよ
うにしたショックアブソーバの減衰力テスト装置に関す
る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a damping force testing device for a shock absorber, and particularly to a damping force testing device for a shock absorber that has a compact structure and can be easily incorporated into an assembly worker 8@.

従来、この種の装置として、例えば第1図に示すような
ものが知られている。即ち、互いに対向する位置に、シ
ョックアブソーバ11のピストン11AとシェルIIB
とに相対変位を右える変位印加手段、例えばクランク機
構12と、一定のテスト荷重を与える荷重発生手段、例
えばシリンダ機ti413とを設け、クランクに+ I
iv 1 ’ 2に変位検出器としてのロータリエンコ
ーダ14を、またシリンダ8’Nrrj l 3に荷重
検出器としてのロードセル15を夫々取付けたものであ
る。なお、各機構12.13に夫々チャック1(3,1
7を設け、ショックアブソーバ11の各端部を手動操作
によシ把持させるようにしている。
Conventionally, as this type of device, one shown in FIG. 1, for example, is known. That is, the piston 11A of the shock absorber 11 and the shell IIB are located at positions facing each other.
A displacement applying means for applying a relative displacement to the crank, for example, the crank mechanism 12, and a load generating means for applying a constant test load, for example, a cylinder machine ti413, are provided, and +I is applied to the crank.
A rotary encoder 14 as a displacement detector is attached to iv1'2, and a load cell 15 as a load detector is attached to cylinder 8'Nrrj13. In addition, each mechanism 12.13 has a chuck 1 (3, 1
7 is provided so that each end of the shock absorber 11 can be manually gripped.

ところが、このような従来の装置においては、ショック
アブソーバ11のピストン11Aとシェル11Bとを大
々両端側から個別に把持操作する必要があって面倒な手
作栗を裂し、工数が複雑になると共に、作業能率が著し
く恕いものであった。
However, in such a conventional device, it is necessary to individually grasp and operate the piston 11A and shell 11B of the shock absorber 11 from both ends, which causes troublesome hand-made chestnuts and complicates the man-hours. At the same time, work efficiency was extremely poor.

捷た、生産工程の集約化に伴ない、ショックアブソーバ
の減衰力テストの組立てラインー\の組込みが望まれる
が、前記従来の桁数では、ショックアブソーバを両端側
から把持する構成であるため、ユニット化が困難で、工
程集約化に1α接効果的なものとはならない。
With the consolidation of production processes, it is desired to incorporate shock absorber damping force testing into an assembly line. Therefore, it is difficult to achieve a 1α effect on process intensification.

本発明は、このような事情に衛みてなされたもので、コ
ンパクトで、ショックアブソーバの組立てライン等への
組込みも容易で、かつ作業も容易に行えるショックアブ
ソーバの減衰力テスト装置=を提供することを目的とす
る。
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a shock absorber damping force test device that is compact, easy to incorporate into a shock absorber assembly line, etc., and easy to operate. With the goal.

本発明は、この目的を達成するため、ソヨツクアプソー
バを起立姿勢で載は固定する載置手段の上方に、ショッ
クアブソーバの上端を把持し、そのショックアブソーバ
のピストン、シェル間に一定ストロークの相対変位及び
テスト荷重を与える変位印加兼荷重発生手段を配置し、
この変位印加荷重琵生手段は、ショックアブソーバ把持
位置と減衰力テスト位置との一定高さ範囲に亘って昇降
する昇降手段に変位検出器及び荷重検出器と共に一体的
に昇降可能に支持する構成としたものである。
In order to achieve this object, the present invention grasps the upper end of a shock absorber above a mounting means for fixing the shock absorber in an upright position, and a constant stroke is created between the piston and shell of the shock absorber. Displacement application and load generation means for applying relative displacement and test load are arranged,
This displacement applying load generating means has a structure in which it is integrally supported so as to be movable up and down together with the displacement detector and the load detector on the elevating means that moves up and down over a certain height range between the shock absorber gripping position and the damping force test position. This is what I did.

以下、本発明の一実施Mを第2図及び第3図ン参照して
説明する。
Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 2 and 3.

ショックアブソーバ21紮起立@勢で、かつ下端を固定
する適宜の載113手段(図示しないが水平なベニ7)
’+niとショックアブソーバのシェル先端(下端)の
A部を押下げ保持する押圧レバー等によって構1ffl
し得る)の上方に、ショックアブソーバ21の上端、例
えばピストン21Aの先端を把持し、ショックアブソー
バ21のピストン21 A。
Appropriate mounting 113 means (not shown, but horizontal bench 7) for fixing the lower end of the shock absorber 21 in an erect position
'+ni and a pressing lever that presses down and holds part A at the tip (lower end) of the shock absorber shell 1ffl
Hold the upper end of the shock absorber 21, for example, the tip of the piston 21A, above the piston 21A of the shock absorber 21.

シェル21 B 間に一定ストロークの相対変位及びテ
スト荷重を与える変位印加兼荷重発生手段22を配置し
ている。この変位印加兼荷重発生手段22は、ショック
アブソーバ把持位置(例えばピストン21Aが最大限没
入した位置)と減衰力テスト位置(後述するクランク軸
が水平となる位置)との一定高さ1lIfL囲に亘って
昇降する昇降手段23に昇降可能に支持している。
Disposed between the shells 21B is a displacement applying/load generating means 22 for applying a constant stroke of relative displacement and a test load. This displacement applying/load generating means 22 extends over a certain height 1lIfL between the shock absorber gripping position (for example, the position where the piston 21A is recessed to the maximum extent) and the damping force test position (the position where the crankshaft is horizontal, which will be described later). It is supported so as to be movable up and down by a lifting means 23 that moves up and down.

昇降手段23は、基体7レーム24の上端部に設けた下
向きのシリンダ25に連結した一定ストローク昇IQ 
Lつるスライドベース26からなり、沖!直なガイドロ
ッド27に市って案内される。このスライドベース27
の一側1fil gttにブラケット28を介して変位
印加シi〔荷亀発生十段22の主体となるクランク機構
29か取シ付けである。このクランク機構29はユニバ
ーザルジヨイント30を介して、基体フレーム24上に
設けた駆動モータ31に、ブー!J32,33及びベル
ト34を介して連結しである。このクランク機構29の
クランク軸35にクランクアーム36を垂直に連結し、
このクランクアーム36の下端にチャック用シリンダ3
7を介してチャック爪38を取9付けている。′このチ
ャック爪38はショックアブソーバ21の上、)、iM
1即らピストンロッド21Aを自動的に把持しうるよう
に一定ストローク下降した時に収縮するようにしたもの
で必る。このクランク機構29に荷■(検出器としての
ロードセル39及び変位(角度)検出器としてのロータ
リエンコーダ40を一体に取り付けている。即ち、ロー
ドセル39はクランクアーム36とチャック用シリンダ
37との間に取シ伺けである。またロータリエンコーダ
40はクランク軸35の先端部に取り付けである。
The elevating means 23 is a constant stroke elevating IQ connected to a downward cylinder 25 provided at the upper end of the base 7 frame 24.
Consisting of 26 L vine slide bases, Oki! It is guided by a straight guide rod 27. This slide base 27
A crank mechanism 29, which is the main body of the 10-stage loading mechanism 22, is attached to one side of the 1fil gtt via a bracket 28. This crank mechanism 29 is connected to a drive motor 31 provided on the base frame 24 via a universal joint 30. They are connected via J32, 33 and a belt 34. A crank arm 36 is vertically connected to the crank shaft 35 of the crank mechanism 29,
A chuck cylinder 3 is attached to the lower end of this crank arm 36.
A chuck claw 38 is attached via 7. 'This chuck claw 38 is located above the shock absorber 21, ), iM
First, the piston rod 21A must be contracted when the piston rod 21A is lowered by a certain stroke so that the piston rod 21A can be automatically gripped. A load cell 39 as a detector and a rotary encoder 40 as a displacement (angle) detector are integrally attached to this crank mechanism 29. That is, the load cell 39 is placed between the crank arm 36 and the chuck cylinder 37. The rotary encoder 40 is attached to the tip of the crankshaft 35.

なお、図ボしないが、基体クレーム24内に減衰力表示
装置等の出力部を配装している。
Although not shown in the figure, an output section such as a damping force display device is disposed within the base claim 24.

次に第3図によって動作を説明する。即ち、第3図の上
段から、チャック爪38によるチャック状態■、スライ
ドベース26の上昇及び下降■。
Next, the operation will be explained with reference to FIG. That is, from the top of FIG. 3, the chuck state (2) by the chuck claw 38, and the rising and descending state (2) of the slide base 26.

駆動モータ31の回転及び停止■、ワーク検出器(図示
し力いが、所定位11′iにショックアブソーバがある
か否かを判定する)のワーク検出及び減衰力の判定(0
1i’F、ON)■の夫々についての1サイクル作動状
態を示している。
Rotation and stop of the drive motor 31, detection of the workpiece by the workpiece detector (determined whether or not there is a shock absorber at a predetermined position 11'i, shown in the figure), and determination of the damping force (0
1i'F, ON) 1-cycle operation status for each of (1i'F, ON) and (1i'F, ON) is shown.

以下、動作順に従い作用を説明する。The effects will be explained below in accordance with the order of operation.

(1) ショックアブソーバ21が載置手股上にあるこ
とを判定■すると、まずスライドベース26が下降する
■。
(1) When it is determined (■) that the shock absorber 21 is above the placing hand, the slide base 26 is first lowered (■).

(2)続いてチャック爪38がチャック用シリンダ37
の動作によってショックアブソーバ21のピストン21
Aの上端をチャックする■。その後スライドベース26
は測定位置まで上昇する■。
(2) Next, the chuck claw 38 is moved to the chuck cylinder 37.
The piston 21 of the shock absorber 21 is
Chuck the top end of A■. Then slide base 26
■ rises to the measurement position.

(3)  この後、駆動モータ31が回転し■、図示し
な込減衰力自動判定装置によって減衰力の測定が行われ
、その合否を判定する■。
(3) After this, the drive motor 31 rotates (2), the damping force is measured by the automatic damping force determination device (not shown), and its pass/fail is determined (2).

(4)合否判定後、スライドベース26が下降しα駆動
モータ31が停止する■。
(4) After the pass/fail determination, the slide base 26 is lowered and the α drive motor 31 is stopped.

(5)その後チャック爪38をチャック用シリンダ37
の動作により上昇させてアンチャック状態とし■、スラ
イドベース26を上昇させる■。
(5) After that, move the chuck claw 38 to the chuck cylinder 37.
The slide base 26 is raised to the unchucked state (■) by the operation of (2), and the slide base 26 is raised (■).

このような構成及び作用に基づく本実施例の装置による
と、ショックアブソーバ21を自動的にクランプすると
共に、相対変位させ、それに伴なワセてロードセル39
及びロータリエンコーダ40によって自動連続的に減衰
力がテストできるので、従来の如く手動操作によってク
ランプするものと異なシ、省力化が図れると同時に作業
能率の向上が図れる。
According to the device of the present embodiment based on such a configuration and operation, the shock absorber 21 is automatically clamped and relatively displaced, and the load cell 39 is
Since the damping force can be automatically and continuously tested using the rotary encoder 40, this is different from the conventional method of manually clamping the clamp, and it is possible to save labor and improve work efficiency.

また、相対変位を与えるためのクランク機構29にロー
ドセル39及びロータリエンコーダ40’に一体的に組
込み、これをスライドベース26によって昇降動作する
ことによυ、ショックアブソーバ21における相対変位
動作と減衰力テストを実施できるようにしたものである
から、各手段がショックアブソーバ上方にコンパクトに
配置されたものとなり、小型化が図れ設置スペースも格
別広く必要とせず、従って、ショックアブソーバの組立
てライン等への組込みによる工程集約化に適したものと
なる。
In addition, a load cell 39 and a rotary encoder 40' are integrated into a crank mechanism 29 for applying relative displacement, and this is moved up and down by a slide base 26 to test the relative displacement operation and damping force of the shock absorber 21. Since each means is compactly arranged above the shock absorber, it can be miniaturized and does not require a particularly large installation space, making it easy to incorporate it into the shock absorber assembly line, etc. This makes it suitable for process consolidation.

本発明は以上の実施例で詳述したように、ショックアブ
ソーバの減衰力テスト装置のコンパクト化が図!シ、シ
ョックアブソーバの組立て用搬送装置との同期作業等も
行えるようになり、全体工程の集約化にも大きく寄与す
ることができる。
As described in detail in the above embodiments, the present invention allows a shock absorber damping force testing device to be made more compact! This also makes it possible to perform synchronized work with the transport device for shock absorber assembly, greatly contributing to the consolidation of the entire process.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来装置を示す構成図、第2図及び第3図は本
発明の一実施例を示すもので、第2図は装置d構成を詳
細に示す正面図、第3図は作用を示す工程説明用の線図
である。 21・・・ショックアブソーバ、21A・・・ピストン
。 21B・・・シェル、  22・・・変位印加兼前型発
生手段、  23・・・昇降手段、  39・・・荷重
検出器(ロードセル)、40・・・変位検出器(ロータ
リエンコーダ)。 代理人  鵜 沼 辰 之 (ほか2名) 第1図 4 第2図 ス1
Fig. 1 is a configuration diagram showing a conventional device, Figs. 2 and 3 show an embodiment of the present invention, Fig. 2 is a front view showing the configuration of the device d in detail, and Fig. 3 shows the operation. FIG. 3 is a diagram for explaining the process shown in FIG. 21... Shock absorber, 21A... Piston. 21B...Shell, 22...Displacement application and front mold generation means, 23...Elevating means, 39...Load detector (load cell), 40...Displacement detector (rotary encoder). Agent Tatsuyuki Unuma (and 2 others) Figure 1 4 Figure 2 S1

Claims (1)

【特許請求の範囲】[Claims] (1)  ショックアブソーバのピストン、シェル間に
相対変位を写えつつ減衰力をテストするショックアブソ
ーバのテスト装置において、ショックアブソーバを起立
姿勢で載置固定する載置手段の上方に、ショックアブソ
ーバの上端を把持し、そのショックアブソーバのピスト
ン、シェル間に一定ストロークの相対変位及びテスト荷
重を方える変位印加兼荷重発生手段を配置し、この変位
印加荷重発生手段は、ショックアブソーバ把持位置と減
衰力テスト位置との一定高さ範囲に亘って昇降する昇降
手段に変位検出器及び荷重検出器と共に一体的に昇降可
能に支持してなることを特徴とするショックアブソーバ
の減衰力テスト装置。
(1) In a shock absorber test device that tests the damping force while observing the relative displacement between the piston and shell of the shock absorber, the upper end of the shock absorber is placed above the mounting means for mounting and fixing the shock absorber in an upright position. A displacement applying and load generating means is arranged to apply a constant stroke of relative displacement and a test load between the shock absorber's piston and shell, and this displacement applying load generating means is used to control the damping force test between the shock absorber gripping position and the damping force test. 1. A damping force test device for a shock absorber, characterized in that a displacement detector and a load detector are integrally supported in a vertically movable manner by a lifting means that moves up and down over a certain height range.
JP17488382A 1982-10-05 1982-10-05 Damping force testing apparatus for shock absorber Granted JPS5965237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17488382A JPS5965237A (en) 1982-10-05 1982-10-05 Damping force testing apparatus for shock absorber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17488382A JPS5965237A (en) 1982-10-05 1982-10-05 Damping force testing apparatus for shock absorber

Publications (2)

Publication Number Publication Date
JPS5965237A true JPS5965237A (en) 1984-04-13
JPH0221738B2 JPH0221738B2 (en) 1990-05-16

Family

ID=15986326

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17488382A Granted JPS5965237A (en) 1982-10-05 1982-10-05 Damping force testing apparatus for shock absorber

Country Status (1)

Country Link
JP (1) JPS5965237A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1011801A5 (en) * 1997-06-24 2000-01-11 Mannesmann Sachs Ag Device for the control of force shock damping oscillations.
WO2000022320A1 (en) * 1998-10-14 2000-04-20 Showa Corporation Method and device for assembling hydraulic shock absorber
KR100345197B1 (en) * 1999-12-23 2002-07-24 현대자동차주식회사 Test device of oil mounting for vehicle
KR100411137B1 (en) * 2000-12-28 2003-12-18 현대자동차주식회사 Sock absorber testing jig
KR100412280B1 (en) * 1998-10-17 2004-05-10 주식회사 만도 Oscillator for small quantity batch production
KR100594476B1 (en) 2006-03-04 2006-06-30 박건홍 Tester for oil damper
KR100728868B1 (en) 2005-11-14 2007-06-19 한국철도기술연구원 Apparatus for measuring damper displacement in railway vehicles
JP2008045921A (en) * 2006-08-11 2008-02-28 Toyota Motor Corp Apparatus and method for measuring vibration
ES2304894A1 (en) * 2007-04-11 2008-10-16 Trabazola, S.A. System controller of the state of the shock absorbers in automobile vehicles (Machine-translation by Google Translate, not legally binding)
KR100870954B1 (en) * 2002-02-07 2008-12-01 재단법인 포항산업과학연구원 Low temperature chamber for dynamic and static character measurement of shock transmission unit and dynamic and static character measurement method
JP2010197276A (en) * 2009-02-26 2010-09-09 Toyota Technical Development Corp Apparatus and method of measuring suspension axial force
CN105865811A (en) * 2016-04-14 2016-08-17 辽宁工业大学 Automotive suspension vibration damper energy characteristic testing system and automotive suspension vibration damper energy characteristic metering method
CN107741316A (en) * 2017-09-13 2018-02-27 中国矿业大学 Deep-well lifting system magneto overtravel protection testing stand

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1011801A5 (en) * 1997-06-24 2000-01-11 Mannesmann Sachs Ag Device for the control of force shock damping oscillations.
ES2147129A1 (en) * 1997-06-24 2000-08-16 Mannesmann Sachs Ag Apparatus for testing the damping force of vibration dampers
WO2000022320A1 (en) * 1998-10-14 2000-04-20 Showa Corporation Method and device for assembling hydraulic shock absorber
GB2346947A (en) * 1998-10-14 2000-08-23 Showa Corp Method and device for assembling hydraulic shock absorber
GB2346947B (en) * 1998-10-14 2002-05-29 Showa Corp Method and device for assembling hydraulic shock absorber
KR100412280B1 (en) * 1998-10-17 2004-05-10 주식회사 만도 Oscillator for small quantity batch production
KR100345197B1 (en) * 1999-12-23 2002-07-24 현대자동차주식회사 Test device of oil mounting for vehicle
KR100411137B1 (en) * 2000-12-28 2003-12-18 현대자동차주식회사 Sock absorber testing jig
KR100870954B1 (en) * 2002-02-07 2008-12-01 재단법인 포항산업과학연구원 Low temperature chamber for dynamic and static character measurement of shock transmission unit and dynamic and static character measurement method
KR100728868B1 (en) 2005-11-14 2007-06-19 한국철도기술연구원 Apparatus for measuring damper displacement in railway vehicles
KR100594476B1 (en) 2006-03-04 2006-06-30 박건홍 Tester for oil damper
JP2008045921A (en) * 2006-08-11 2008-02-28 Toyota Motor Corp Apparatus and method for measuring vibration
ES2304894A1 (en) * 2007-04-11 2008-10-16 Trabazola, S.A. System controller of the state of the shock absorbers in automobile vehicles (Machine-translation by Google Translate, not legally binding)
JP2010197276A (en) * 2009-02-26 2010-09-09 Toyota Technical Development Corp Apparatus and method of measuring suspension axial force
CN105865811A (en) * 2016-04-14 2016-08-17 辽宁工业大学 Automotive suspension vibration damper energy characteristic testing system and automotive suspension vibration damper energy characteristic metering method
CN107741316A (en) * 2017-09-13 2018-02-27 中国矿业大学 Deep-well lifting system magneto overtravel protection testing stand

Also Published As

Publication number Publication date
JPH0221738B2 (en) 1990-05-16

Similar Documents

Publication Publication Date Title
JPS5965237A (en) Damping force testing apparatus for shock absorber
CN110926947A (en) Column type insulator check out test set
JP4100783B2 (en) Method and apparatus for assembling hydraulic shock absorber
CN116499908A (en) Metal material surface hardness check out test set
CN107363532B (en) A kind of electrical box automatic assembling apparatus
CN110940919A (en) Automatic test equipment for plastic package motor
CN208459497U (en) The automatic test bag adhesive tape machine of transformer
CN107378472B (en) A kind of electrical box automatic assembly method
CN207873554U (en) Turnover testing mechanism
US4442705A (en) Clamping nosepiece for hardness tester
CN211955745U (en) Plastic envelope motor automatic test equipment is with holding device tightly
CN111238934B (en) Metal test piece tensile mechanical property device and test method thereof
JPS58127141A (en) Tester for damping force of shock absorber
CN211718018U (en) Hardness testing machine
CN209830716U (en) Automobile cooler welding fixing clamp
CN211877640U (en) Tension-torsion testing machine for plug
CN209027716U (en) A kind of torque tester for aligning component
CN209673525U (en) A kind of fatigue testing equipment for metal processing piece
CN114264467B (en) Door actuator testing device and working method thereof
JP2022074589A (en) Creep testing machine and creep testing method
CN110296784A (en) A kind of torque value automatic detection device and detection method
JPH07119676B2 (en) Fatigue test device for viscoelastic body
CN105698639B (en) A kind of auto shock absorber cubing and match method for relocating
CN219582099U (en) Vertical butt joint device
CN219131108U (en) Ultrasonic welding auxiliary fixtures